- Informal. thank God it's Friday.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
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Maybe something along the lines of…TGIF: Troubled Government Initiatives Fix?A Modest Proposal
February 15, 2009
also T.G.I.F., by 1946, slang abbreviation of "Thank God (or "goodness"), it's Friday" (end of the work week).
Online Etymology Dictionary, © 2010 Douglas Harper